/**
 * This script is used to play the animation in POTFOLIO Page.
 */
(function() {
	function scrollY() {
		return window.pageYOffset || docElem.scrollTop;
	}

    // Below function is used to check, whether website is opened in PC or a mobile device.
    // To recognise mobile device and it can be commented if not required.
	function mobilecheck() {
		var check = false;
		(function(a){if(/(android|ipad|playbook|silk|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows (ce|phone)|xda|xiino/i.test(a)||/1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\-(n|u)|c55\/|capi|ccwa|cdm\-|cell|chtm|cldc|cmd\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\-s|devi|dica|dmob|do(c|p)o|ds(12|\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\-|_)|g1 u|g560|gene|gf\-5|g\-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd\-(m|p|t)|hei\-|hi(pt|ta)|hp( i|ip)|hs\-c|ht(c(\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\-(20|go|ma)|i230|iac( |\-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc\-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|\-[a-w])|libw|lynx|m1\-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m\-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\-2|po(ck|rt|se)|prox|psio|pt\-g|qa\-a|qc(07|12|21|32|60|\-[2-7]|i\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\-|oo|p\-)|sdk\/|se(c(\-|0|1)|47|mc|nd|ri)|sgh\-|shar|sie(\-|m)|sk\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\-|v\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\-|tdg\-|tel(i|m)|tim\-|t\-mo|to(pl|sh)|ts(70|m\-|m3|m5)|tx\-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas\-|your|zeto|zte\-/i.test(a.substr(0,4)))check = true})(navigator.userAgent||navigator.vendor||window.opera);
		return check;
	}

	var docElem = window.document.documentElement,
		// support transitions
		support = Modernizr.csstransitions,
		// transition end event name
		transEndEventNames = {
			'WebkitTransition': 'webkitTransitionEnd',
			'MozTransition': 'transitionend',
			'OTransition': 'oTransitionEnd',
			'msTransition': 'MSTransitionEnd',
			'transition': 'transitionend'
		},
		transEndEventName = transEndEventNames[ Modernizr.prefixed( 'transition' ) ],
		docscroll = 0,
		// click event (if mobile use touchstart)
		clickevent = mobilecheck() ? 'touchstart' : 'click';
	
	function init() {
		var showMenu = document.getElementById( 'showMenu' ),
			perspectiveWrapper = document.getElementById('perspective') ,
			container = perspectiveWrapper.querySelector('.container') ,
			contentWrapper = container.querySelector( '.wrapper' ),
			buttonPerspective = document.getElementById('buttonPerspective'),
			    slideMenu = document.getElementById('slideMenu');
	    //alert('menue1');		
		showMenu.addEventListener(clickevent, function (ev) {
		    //alert('menue11');
			ev.stopPropagation();
			ev.preventDefault();
			docscroll = scrollY();
			// change top of contentWrapper
			contentWrapper.style.top = docscroll * -1 + 'px';
			// mac chrome issue:
			document.body.scrollTop = document.documentElement.scrollTop = 0;
			// add modalview class
			classie.add( perspectiveWrapper, 'modalview' );
			// animate..
			setTimeout( function() { classie.add( perspectiveWrapper, 'animate' ); }, 25 );
		});

		slideMenu.addEventListener(clickevent, function (ev) {
		    //alert('menue 2 ' + classie.has(buttonPerspective, 'animate'));

		    if (classie.has(perspectiveWrapper, 'animate') || classie.has(buttonPerspective, 'animate') == false) {
		        var onEndTransFn = function (ev) {
		            if (support && (ev.target.className !== 'container' || ev.propertyName.indexOf('transform') == -1)) return;
		            this.removeEventListener(transEndEventName, onEndTransFn);
		            classie.remove(perspectiveWrapper, 'modalview');
		            // mac chrome issue:
		            document.body.scrollTop = document.documentElement.scrollTop = docscroll;
		            // change top of contentWrapper
		            contentWrapper.style.top = '0px';
		        };
		        if (support) {
		            perspectiveWrapper.addEventListener(transEndEventName, onEndTransFn);
		        }
		        else {
		            onEndTransFn.call();
		        }
		        classie.remove(perspectiveWrapper, 'animate');
		    }
		});

		container.addEventListener(clickevent, function (ev) {
		    //alert('menue 2 ' + classie.has(buttonPerspective, 'animate'));
            //here I need to check the function execution for the newly added element ID.
		    if (classie.has(perspectiveWrapper, 'animate') || classie.has(buttonPerspective, 'animate')==false) {
				var onEndTransFn = function( ev ) {
					if( support && ( ev.target.className !== 'container' || ev.propertyName.indexOf( 'transform' ) == -1 ) ) return;
					this.removeEventListener( transEndEventName, onEndTransFn );
					classie.remove( perspectiveWrapper, 'modalview' );
					// mac chrome issue:
					document.body.scrollTop = document.documentElement.scrollTop = docscroll;
					// change top of contentWrapper
					contentWrapper.style.top = '0px';
				};
				if( support ) {
					perspectiveWrapper.addEventListener( transEndEventName, onEndTransFn );
				}
				else {
					onEndTransFn.call();
				}
				classie.remove( perspectiveWrapper, 'animate' );
			}
		});

		perspectiveWrapper.addEventListener( clickevent, function( ev ) { return false; } );
	}

	init();

})();